Storability

Compounds

The storage life of a mixture depends on its composition and, as a rule, is from three to twelve weeks.
The storage life date can be found on the card that accompanies a compound. Careful preliminary inspections will guarantee that processing is carried out within the specified storage life. Unfavorable storage conditions, however, might have a negative effect on durability. We therefore recommend the following guidelines.

The storage site should be cool, dry and protected from direct exposure to light (sunlight, strong artificial light).

The storage should not be outdoors.

Storage room temperatures should not be below + 5°C or above + 25°C. Short summer peaks of up to +35°C generally will not damage the compound.

Important: Long storage periods at temperatures over +25°C can shorten storage life.

The general storage recommendation specified for best storage temperature of +5°C to +25°C with short-term summer peaks up to +35°C is not applicable for ECO, ACM, AEM and CR (limited) compounds. Such rubber compounds are very sensitive to high temperatures, so we recommend a maximum storage temperature of 20°C, if it is to be stored for the full 4 week period. Our analysis of the rheometer curves and Mooney values showed that there is a maximum storage life of just 5 days when stored at a temperature of > 25°C.